Ontology mappings are often assigned a weight or confidence factor by matchers. Nonetheless, few semantic accounts have been given so far for such weights. This paper presents a formal semantics for weighted mappings between different ontologies. It is based on a classificational interpretation of mappings: if O1 and O2 are two ontologies used to classify a common set X, then mappings between O1 and O2 are interpreted to encode how elements of X classified in the concepts of O1 are re-classified in the concepts of O2, and weights are inter- preted to measure how precise and complete re-classifications are. This semantics is justifiable by extensional practice of ontology matching. It is a conservative ex- tension of a semantics of crisp mappings. The paper also includes properties that relate mapping entailment with description logic constructors.

A formal semantics for weighted ontology mappings.

Ghidini, Chiara;Serafini, Luciano
2012

Abstract

Ontology mappings are often assigned a weight or confidence factor by matchers. Nonetheless, few semantic accounts have been given so far for such weights. This paper presents a formal semantics for weighted mappings between different ontologies. It is based on a classificational interpretation of mappings: if O1 and O2 are two ontologies used to classify a common set X, then mappings between O1 and O2 are interpreted to encode how elements of X classified in the concepts of O1 are re-classified in the concepts of O2, and weights are inter- preted to measure how precise and complete re-classifications are. This semantics is justifiable by extensional practice of ontology matching. It is a conservative ex- tension of a semantics of crisp mappings. The paper also includes properties that relate mapping entailment with description logic constructors.
9783642351754
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11582/103404
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